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公开(公告)号:US20220095986A1
公开(公告)日:2022-03-31
申请号:US17489036
申请日:2021-09-29
Applicant: Boston Scientific Scimed Inc.
Inventor: Nathan H. Bennett , Brian Stewart , Nicholas Herlambang , Suzhou Li , Mordechai Periman
Abstract: At least some embodiments of the present disclosure is directed to a system for processing cardiac information. The system comprises a processing unit configured to: receive an activation waveform comprising a set of activation waveform data of a plurality of signal sections collected at a plurality of locations; receive a range of window size. For each of the plurality of signal sections, the processing unit is further configured to: determine a set of confidence values, by iterating through a plurality of window sizes in the range of window size. For each of the plurality of signal sections, the processing unit is further configured to determine one of a plurality of local cycle lengths for the each of the plurality of signal sections based on the selected window size. And generate a representation of the plurality of local cycle lengths.
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公开(公告)号:US20200146575A1
公开(公告)日:2020-05-14
申请号:US16747708
申请日:2020-01-21
Applicant: Boston Scientific Scimed Inc.
Inventor: Brian Stewart , Doron Feinstein , Mordechai Perlman , Nathan H. Bennett , Vasiliy E. Buharin
Abstract: A system for facilitating display of cardiac information includes a display device configured to present a cardiac map; and a processing unit configured to: receive electrical signals and indications of measurement locations corresponding to the electrical signals; generate, based on the electrical signals, the cardiac map, which includes annotations representing cardiac signal features; and determine a set of interesting cardiac signal features. The processing unit also may determine, based on the set of interesting cardiac signal features, a region of interest; and facilitate display, via the display device, of the cardiac map and a representation of the region of interest. The representation of the region of interest includes a first display parameter value that is different from a second display parameter value, where the second display parameter value is associated with at least one cardiac signal feature that is not included within the region of interest.
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公开(公告)号:US20190216346A1
公开(公告)日:2019-07-18
申请号:US16249162
申请日:2019-01-16
Applicant: Boston Scientific Scimed Inc.
Inventor: Alireza Ghodrati , Nathan H. Bennett , Brian Stewart
CPC classification number: A61B5/04011 , A61B5/04017 , A61B5/0422 , A61B5/044 , A61B5/068 , A61B5/6858 , A61B5/7203 , A61B2562/0209
Abstract: A system including a catheter including multiple, spatially distributed electrodes configured to measure electrical signals of a heart, a system configured to determine a position of the electrodes at multiple, different catheter positions in the heart, and a processing unit for mapping electrical activity in the heart. The processing unit is configured to receive the measured electrical signals from each position of the multiple, different catheter positions and determine whether the measured electrical signals at the position are organized. If the measured electrical signals at the position are organized, the processing unit is configured to determine at least one of velocity vectors, cycle length, and degree of organization at the position from the measured electrical signals.
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公开(公告)号:US20180296113A1
公开(公告)日:2018-10-18
申请号:US15955450
申请日:2018-04-17
Applicant: Boston Scientific Scimed Inc.
Inventor: Brian Stewart , Vasiliy E. Buharin , Mordechai Perlman , Nathan H. Bennett
CPC classification number: A61B5/04017 , A61B5/0422 , A61B5/044 , A61B5/0452 , A61B5/062 , A61B5/063 , A61B5/6852 , G06T17/00 , G16H50/20
Abstract: Systems and methods for processing cardiac information include a processing unit configured to receive a set of cardiac electrical signals; receive an indication of a measurement location corresponding to each of the set of electrical signals; and identify, for each electrical signal of the set of electrical signals, a deflection. The deflection includes a deviation from a signal baseline. An activation waveform corresponding to the set of electrical signals is generated based on the identified deflections.
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公开(公告)号:US09848795B2
公开(公告)日:2017-12-26
申请号:US14723408
申请日:2015-05-27
Applicant: BOSTON SCIENTIFIC SCIMED, INC.
Inventor: Andrew T. Marecki , Paul Hultz , Michael C. Kozlowski , Brian Stewart
CPC classification number: A61B5/0422 , A61B5/6855 , A61B5/6856 , A61B5/6857 , A61B5/6858 , A61B5/6859 , A61B18/1492 , A61B2017/00044 , A61B2018/0016 , A61B2018/00267 , A61B2562/0209 , A61B2562/125 , A61B2562/164 , A61B2562/166 , Y10T29/49119 , Y10T29/49126
Abstract: An expandable electrode assembly for use in a cardiac mapping procedure includes multiple bipolar electrode pairs including a first electrode located on an outer surface and a second electrode located on an inner surface of the individual splines forming the expandable electrode assembly. Such an electrode arrangement may produce improved electrical activation signals which may be used to produce a more accurate map of the electrical activity of a patient's heart.
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公开(公告)号:US09743854B2
公开(公告)日:2017-08-29
申请号:US14975197
申请日:2015-12-18
Applicant: Boston Scientific Scimed Inc.
Inventor: Brian Stewart , Adam Magen , Nathan H. Bennett , Michal Weisman , Paul Hultz
CPC classification number: A61B5/0422 , A61B5/04017 , A61B5/044 , A61B5/6852 , A61B18/1492 , A61B2018/00357 , A61B2018/00577 , A61B2018/00779 , A61B2018/00839
Abstract: Electrodes are used to measure an electrical signal (e.g., an electrogram). One or more filters are applied to the electrical signal to generate one or more filtered signals. Features of the filtered signals are evaluated to assess a sharpness corresponding to the electrical signal. Based on the sharpness, various characteristics of a morphology of the electrogram may be evaluated over a time period.
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公开(公告)号:US20160174865A1
公开(公告)日:2016-06-23
申请号:US14975197
申请日:2015-12-18
Applicant: Boston Scientific Scimed Inc.
Inventor: Brian Stewart , Adam Magen , Nathan H. Bennett , Michal Weisman , Paul Hultz
CPC classification number: A61B5/0422 , A61B5/04017 , A61B5/044 , A61B5/6852 , A61B18/1492 , A61B2018/00357 , A61B2018/00577 , A61B2018/00779 , A61B2018/00839
Abstract: Electrodes are used to measure an electrical signal (e.g., an electrogram). One or more filters are applied to the electrical signal to generate one or more filtered signals. Features of the filtered signals are evaluated to assess a sharpness corresponding to the electrical signal. Based on the sharpness, various characteristics of a morphology of the electrogram may be evaluated over a time period.
Abstract translation: 电极用于测量电信号(例如电描记图)。 将一个或多个滤波器应用于电信号以产生一个或多个滤波信号。 评估滤波信号的特征以评估对应于电信号的清晰度。 基于清晰度,可以在一段时间内评估电描记图的形态的各种特征。
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公开(公告)号:US10271758B2
公开(公告)日:2019-04-30
申请号:US15275438
申请日:2016-09-25
Applicant: Boston Scientific Scimed Inc.
Inventor: Brian Stewart , Doron Harlev , Nathan H. Bennett
IPC: A61B5/04 , A61B5/0452 , A61B5/042 , A61B5/0432 , A61B5/044 , A61B5/00 , A61B5/0245
Abstract: A system for providing information about a patient's heart, the system including one or more catheters that receive intracardiac signals from electrical activity of the heart over one or more heart beat cycles and an electronic processor coupled to the one or more catheters. The electronic processor to: receive the intracardiac signals from the one or more catheters; preprocess the intracardiac signals to provide preprocessed signals, wherein each of the intracardiac signals is preprocessed to provide a corresponding preprocessed signal; and compare the preprocessed signals to a set of signals to determine a degree of similarity between each of the preprocessed signals and the set of signals.
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公开(公告)号:US20190099098A1
公开(公告)日:2019-04-04
申请号:US16149399
申请日:2018-10-02
Applicant: Boston Scientific Scimed Inc.
Inventor: Daniel Klebanov , Stefano Capellino , Vasiliy E. Buharin , Brian Stewart , Arun Ramasamy , Nathan H. Bennett
IPC: A61B5/044 , G06T3/40 , G06F3/0488 , A61B5/04 , A61B5/00
Abstract: A system includes a display device configured to present a cardiac map; and a processing unit configured to: receive electrical signals; generate the cardiac map; and facilitate display of the cardiac map, where each electrical signal corresponds to a map location. The processing unit is also configured to receive a user selection of a selected portion of the cardiac map, the selected portion including a set of map locations, each of the set of map locations corresponding to an electrical signal of a set of signals that is a subset of the received electrical signals. The set of map locations has a first spatial arrangement and the processing unit is configured to facilitate display of a set of electrical signal representations, each representation corresponding to one of the set of electrical signals, the set of electrical signal representations having a second spatial arrangement, which corresponds to the first spatial arrangement.
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公开(公告)号:US20180325586A1
公开(公告)日:2018-11-15
申请号:US15976400
申请日:2018-05-10
Applicant: Boston Scientific Scimed Inc.
Inventor: Brian Stewart , Nathan H. Bennett , Vasiliy E. Buharin , Charles A. Gibson , Kurt E. Guggenberger , William Quinn
CPC classification number: A61B18/1492 , A61B2018/00351 , A61B2018/00577 , A61B2018/00642 , A61B2018/00839 , A61B2018/1467 , A61B2562/043 , A61M25/0082 , A61M2210/125
Abstract: An ablation catheter comprises a shaft having a proximal end portion, and a distal end portion having a distal end and defining a longitudinal axis of the ablation catheter. An ablation electrode is located at the distal end of the shaft. A mapping region including a plurality of mini-electrode sets disposed about the shaft is located proximal to the ablation electrode. Each of the mini-electrode sets includes a plurality of mini-electrodes. The ablation catheter further includes a deflection region proximate to or within the mapping region.
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